scholarly journals Structure Design of Needling Machine Producing Small Diameter Felt Jacket and Simulation Analysis of Its Bed

2019 ◽  
Author(s):  
Xiao-qin Zhong ◽  
Qi-qiang Ji ◽  
Xing Wang ◽  
Xiu-guo Shen ◽  
Lin-zhang Ji
Keyword(s):  
Simulation Analysis ◽  
Small Diameter ◽  
Structure Design

scholarly journals Impact Resistance Analysis and Optimization of Variant Truss Beam Structure Based on Material Properties

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5847
Author(s):  
Xiaohao Li ◽  
Junqi Pan ◽  
Xingchen Zhou
Keyword(s):  
Simulation Analysis ◽  
Impact Load ◽  
Impact Resistance ◽  
Structure Design ◽  
Response Surfaces ◽  
Optimization Strategy ◽  
Buffer Effect ◽  
Characteristic Analysis ◽  
Beam Structure ◽  
The Impact

In order to meet the increasing application requirements with regards to structural impact resistance in industries such as mining, construction, aerospace engineering, and disaster relief and mitigation, this paper designs a variant truss beam structure with a large shrinkage ratio and high impact resistance. Based on the principle of the curved trajectory of scissor mechanisms, this paper conducts a finite element simulation analysis of the impact load on the truss beam structure, a theoretical analysis of the impact response and a relevant prototype bench-top experiment, completing a full study on the impact resistance mechanism of the designed variant truss beam structure under the impact load. In the paper, the buffer effect of the external load impact on the variant truss beam structure is analyzed from the perspective of the energy change of elastic–plastic deformation. This paper proposes an optimization strategy for the variant truss beam structure with the energy absorption rate as the optimization index through extensive analysis of the parameter response surfaces. The strategy integrates analyses on the response characteristic analysis of various configuration materials to obtain an optimal combination of component parameters that ensures that the strength of the truss beam structure meets set requirements. The strategy provides a feasible method with which to verify the effectiveness and impact resistance of a variant truss structure design.

Research on the Kinematics Simulation of Out-Moving Jaw Crusher Based on Nastran

2013 ◽  
Vol 433-435 ◽  
pp. 63-66
Author(s):  
Jiang Yong
Keyword(s):  
Simulation Model ◽  
Simulation Analysis ◽  
Dynamic Performance ◽  
Theory Model ◽  
Structure Design ◽  
Side Plate ◽  
Jaw Crusher ◽  
Kinematics Simulation ◽  
Motion Characteristics ◽  
Dynamic Performance Analysis

In this paper, out-moving jaw crusher machine is regarded as the research object and we established the simulation model of virtual prototype based on Nastran. Through the simulation analysis of the movement process, trajectories of moving jaw side plate and a movable jaw toggle plate and related parameters were obtained and compared and verify the simulation model and theory model. The results show that: the simulation model reflects the motion characteristics of the theoretical model well. So it provides theoretical reference for improvement of dynamic performance analysis and structure design of jaw crusher and has important application value in engineering.

Numerical Calculation of Triangle Circulation Drip Irrigation Emitters

2010 ◽  
Author(s):  
Xinkun Wang ◽  
Junhong Li
Keyword(s):  
Flow Rate ◽  
Drip Irrigation ◽  
Simulation Analysis ◽  
Structural Parameters ◽  
Structure Design ◽  
Flow Channel ◽  
Channel Structure ◽  
Sudden Expansion ◽  
Flow Index ◽  
Circulation Flow

Based on the hydraulic characteristics of triangle circulation, sudden-expansion pipe and sudden contraction pipe, Construct a drip irrigation emitter with strong turbulent flow, large over-current cross-section and strong anti-clogging ability. Triangular circulation flow path emitters for the key structural parameters for the factors, application of computer numerical fluid dynamics CFD software FLUENT6.3, simulate triangular circulation flow channel structure, analyze the influence of various structural parameters on hydraulic performance of emitters, flow index, flow rate and the anti-clogging ability. The results show that increase unit cusp, unit chamfer, the flow index increased, but the effect to varying degrees; inlet dimension increase, flow index reduced; flow channel depth and flow channel width increases, the discharge increases. Increase unit cusp, unit chamfered, can improve the anti-clogging performance of emitters. Based on the above results, to design an emitter structure with good performance, and its numerical simulation analysis, the flow index, flow rate and anti-clogging ability have met the requirements of drip irrigation. Provide a theoretical basis for the triangle circulation emitter structure design and quantitative analysis. The research has a positive meaning for energy conservation.

scholarly journals Design and Experimental Study of Rotary Type High-Speed Shearer for Metal Bars

2018 ◽  
Vol 166 ◽  
pp. 01008
Author(s):  
Renfeng Zhao ◽  
Jingyu Zhou ◽  
Yan Li ◽  
Shuqin Fan ◽  
Jingxiang Li ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
High Speed ◽  
Cutting Tool ◽  
Small Diameter ◽  
Structure Design ◽  
Experiment Platform ◽  
Steel Bar ◽  
Feeding Structure ◽  
Stress Concentration Effect ◽  
Rotary Type

For the precision shear of bars, the kind of rotating high-speed precision cutting method has been given. The structure design of rotary precision shearing machine and the structure design of feeding structure are completed. The method of numerical simulation is used to optimize the cutting tool, and then the experiment platform is completed. Rotary impact and the stress concentration effect of the surface of the bar are used in the paper. The experiment is carried out for the Φ8 mm diameter stainless steel bar stock by changing the speed of the cutting tool through the converter and controlling rod feeding efficiency. The experimental results show that the method is feasible to meet the requirement of various material of the small diameter rod in the industry.

The Numerical Simulation Analysis of Irregular Frame Structure Dynamic Characteristics

2013 ◽  
Vol 739 ◽  
pp. 373-375
Author(s):  
Fang Zhang
Keyword(s):  
Numerical Simulation ◽  
Dynamic Characteristics ◽  
Simulation Analysis ◽  
Structure Design ◽  
Frame Structure ◽  
Ansys Software ◽  
Mass Percentage ◽  
Structure Dynamic ◽  
Characteristics Analysis ◽  
Dynamic Characteristics Analysis

A bump of irregular frame structure as an example, the use of ANSYS software, the structure dynamic characteristics analysis, given the cycle ratio and modal participation mass percentage, as the bump of irregular frame structure design reference.

Coated Composite Crosstie Mold Structure Design Used for Experiment with Inventor, Moldflow and Ansys

2013 ◽  
Vol 561 ◽  
pp. 196-200
Author(s):  
Yu Guang Gong ◽  
Zhi Wen Zong ◽  
Ying Yu ◽  
Bai Yuan Lv
Keyword(s):  
Simulation Analysis ◽  
Displacement Vector ◽  
Processing Parameters ◽  
Structure Design ◽  
Mold Cavity ◽  
Von Mises Stress ◽  
Process Conditions ◽  
Injection Mold ◽  
Injection Process ◽  
Von Mises

Coated crosstie products and counter mold components are created in 3-D model using Inventor software, preparing for CAE analysis. By using Moldflow software , to determine products gate location, filling, packing, cooling, push-out processing, as well as the injection process conditions optimization of simulation analysis to find possible defects, modify and optimize the design, determine the best processing parameters and conditions. Binding using Ansys11.0 software to analyze rail sleeper mold cavity deformation, structure stress, get distribution of property of von Mises stress and displacement vector sum, in the mold cavity on the contact surface. By changing the cavity wall thickness, and other factors to improve the force which it is subjected, providing references to structure optimization of injection mold design. It has been proven that in collaborative application of these three softwares, the design of the injection mold is a very efficient and easy.

Investigation on the Effect of Infilled Walls Utilizing Response Spectrum Analysis for Steel Staggered-Truss System

2012 ◽  
Vol 152-154 ◽  
pp. 34-39
Author(s):  
Qing Sheng Guo ◽  
Qing Shan Yang
Keyword(s):  
Spectrum Analysis ◽  
Earth Quake ◽  
Simulation Analysis ◽  
Response Spectrum ◽  
Steel Structure ◽  
3D Models ◽  
Structure Design ◽  
Seismic Load ◽  
Base Shear ◽  
Response Spectrum Analysis

Considering the structure type of the steel staggered-truss (SST) system, the effect of infilled walls will be major and need to be studied amply, some scientific design regulations need to be found for referrence. Based on two different 3D models considering or ignoring the stiffness of infilled walls (SIW), a numerical investigation is presented on the structural behaviors of the SST system utilizing the finite element 3D simulation analysis soft ware ETABS. The longitudinal structure is asymmetrical due to the SIW, it causes the torsion forces in the building. Comparing to the different results of response spectrum analysis, including storey drift and equivalent base shear under frequent earth quake and rare earth quake, some conclusions were made, including the capacity of the SST system under seismic load and the effect of the SIW for SST system. The increased base shear force factors due to the effect of the SIW were suggested for SST structure design, it is different from the other steel structure types.

Transient Dynamics Analysis of Hammer Rod Impact Based on ANSYS

2012 ◽  
Vol 619 ◽  
pp. 135-138
Author(s):  
Jing Jing Wang ◽  
Xu Hong Cui ◽  
Wen Xin Xu ◽  
Miao Xie ◽  
Jun Meng
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Simulation Analysis ◽  
Equivalent Stress ◽  
Structure Design ◽  
Dynamics Simulation ◽  
Transient Dynamics ◽  
Dynamics Analysis ◽  
Air Hammer ◽  
Stress Contour

Regarding the liquid-air hammer rod as the research object, the equivalent stress contour of the hammer rod has been obtained through transient dynamics simulation analysis of the hammer rod impact process by using finite element method. This paper has studied node rate response in different positions of the hammer rod to provide evidence for structure design of this kind of impact members.

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